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Exploring the threat-sensitive predator avoidance hypothesis on mate competition in two wild populations of Trinidadian guppies.

Author(s): Chuard PJC, Grant JWA, Ramnarine IW, Brown GE

The intensity of mate competition is often influenced by predation pressure. The threat-sensitive predator avoidance hypothesis predicts that prey should precisely adjust their fitness-related activities to the level of perceived acute predation risk and th...

Article GUID: 32860863
A Go/No-go delayed nonmatching-to-sample procedure to measure object-recognition memory in rats.

Author(s): Cole E, Chad M, Moman V, Mumby DG

Behav Processes. 2020 Jun 10;:104180 Authors: Cole E, Chad M, Moman V, Mumby DG

Article GUID: 32533993
Context controls the timing of responses to an alcohol-predictive conditioned stimulus.

Author(s): Valyear MD, Chaudhri N

Behav Processes. 2020 Feb 01;:104061 Authors: Valyear MD, Chaudhri N

Article GUID: 32017964
Ideal despotic distributions in convict cichlids (Amatitlania nigrofasciata)? Effects of predation risk and personality on habitat preference.

Author(s): Church KDW, Grant JWA

Behav Processes. 2019 Jan;158:163-171 Authors: Church KDW, Grant JWA

Article GUID: 30529688
Alcohol-seeking and relapse: A focus on incentive salience and contextual conditioning.

Author(s): Valyear MD, Villaruel FR, Chaudhri N

Behav Processes. 2017 Aug;141(Pt 1):26-32 Authors: Valyear MD, Villaruel FR, Chaudhri N

Article GUID: 28473252
Title:A Go/No-go delayed nonmatching-to-sample procedure to measure object-recognition memory in rats.
Authors:Cole E,  Chad M,  Moman V,  Mumby DG
Link:https://www.ncbi.nlm.nih.gov/pubmed/32533993?dopt=Abstract
DOI:10.1016/j.beproc.2020.104180
Category:Behav Processes
PMID:32533993
Dept Affiliation: PSYCHOLOGY
1 Department of Psychology, Concordia University, Montréal, QC, Canada. Electronic address: e_cole@live.concordia.ca.
2 Department of Psychology, Concordia University, Montréal, QC, Canada.

Description:

A Go/No-go delayed nonmatching-to-sample procedure to measure object-recognition memory in rats.

Behav Processes. 2020 Jun 10;:104180

Authors: Cole E, Chad M, Moman V, Mumby DG

Abstract

The novel-object preference (NOP) test is widely used to assess object-recognition memory in rats. When interpreting behaviour on the test, a common assumption is that the magnitude of a rat's novel-object preference reflects the persistence or accuracy of its memory for the previously encountered object. However, some concerns have been raised regarding the latter interpretation, and hence, the internal validity of the NOP test as a gauge of object-recognition abilities. Given the concerns, we developed a new Go/No-go delayed nonmatching-to-sample (DNMS) procedure to measure object-recognition memory, which circumvents the interpretational problems associated with the NOP test. Rats were trained to displace an unfamiliar object (sample) from over a food well to obtain a food reward. Then on a choice phase, rats were presented with novel objects ("Go" trial) or copies of the sample object ("No-go" trial). On Go trials rats received a reward for displacing the novel object and on No-go trials no reward was provided for displacing the sample object. Rats required an average 54 sessions to reach a performance criterion of at least 80% correct choices on five consecutive sessions (16 correct choices out of 20). Afterwards, rats were tested on the NOP test, and we found that scores on both tasks were not significantly correlated, indicating performance on the Go/No-go DNMS task did not predict novelty preference scores. The findings from this experiment reveal the benefits of an alternative approach to assess object-recognition memory in rats.

PMID: 32533993 [PubMed - as supplied by publisher]